public class ListIterator<T extends Item> extends Object implements UnfailingIterator<T>, LastPositionFinder<T>, LookaheadIterator<T>, GroundedIterator<T>
GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD| Constructor and Description |
|---|
ListIterator(List<T> list)
Create a ListIterator over a given List
|
ListIterator(List<T> list,
int length)
Create a ListIterator over the leading part of a given List
|
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Close the iterator.
|
T |
current()
Get the current item in the sequence.
|
ListIterator<T> |
getAnother()
Get another iterator over the same sequence of items, positioned at the
start of the sequence.
|
int |
getLength()
Get the last position (that is, the number of items in the sequence).
|
int |
getProperties()
Get properties of this iterator, as a bit-significant integer.
|
boolean |
hasNext()
Determine whether there are more items to come.
|
GroundedValue |
materialize()
Return a SequenceValue containing all the items in the sequence returned by this
SequenceIterator
|
T |
next()
Get the next item in the sequence.
|
int |
position()
Get the current position
|
public ListIterator(List<T> list)
list - the list: all objects in the list must be instances of Itempublic boolean hasNext()
LookaheadIteratorSequenceIterator.LOOKAHEADhasNext in interface LookaheadIterator<T extends Item>public T next()
UnfailingIteratornext in interface SequenceIterator<T extends Item>next in interface UnfailingIterator<T extends Item>public T current()
UnfailingIteratorcurrent in interface SequenceIterator<T extends Item>current in interface UnfailingIterator<T extends Item>public int position()
UnfailingIteratorposition in interface SequenceIterator<T extends Item>position in interface UnfailingIterator<T extends Item>public void close()
SequenceIterator(Currently, closing an iterator is important only when the data is being "pushed" in another thread. Closing the iterator terminates that thread and means that it needs to do no additional work. Indeed, failing to close the iterator may cause the push thread to hang waiting for the buffer to be emptied.)
close in interface SequenceIterator<T extends Item>public int getLength()
LastPositionFinderSequenceIterator.LAST_POSITION_FINDERgetLength in interface LastPositionFinder<T extends Item>public ListIterator<T> getAnother()
UnfailingIteratorgetAnother in interface SequenceIterator<T extends Item>getAnother in interface UnfailingIterator<T extends Item>public int getProperties()
getProperties in interface SequenceIterator<T extends Item>SequenceIterator.GROUNDED, SequenceIterator.LAST_POSITION_FINDER,
and SequenceIterator.LOOKAHEAD. It is always
acceptable to return the value zero, indicating that there are no known special properties.
It is acceptable for the properties of the iterator to change depending on its state.public GroundedValue materialize()
materialize in interface GroundedIterator<T extends Item>Copyright (c) 2004-2013 Saxonica Limited. All rights reserved.